# SDR UIEA2020072701620

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 23, 2020
- Submitted: July 27, 2020
- Operation: Air carrier
- Aircraft: [N645GT](https://openairdocs.org/aircraft/N645GT), registered now
- Make and model: Boeing 767324
- Aircraft serial: 27393
- Aircraft time: 99,250 hours, 19,085 cycles
- System (JASC): [5100 · Standard Practices/Structures](https://openairdocs.org/jasc/5100)
- Part: Unknown
- Condition: Noise
- Location: Aft Galley
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2020072701620

## Discrepancy

LOUD NOISE IN AFT GALLEY WITH APU AIR SELECTED ON(<P>PERFORMED DVI AND APU BLEED LEAK TEST IAW AMM 36-11-00, NO DEFECTS. REMOVED, INSPECTED, REINSTALLED APU BLEED CHECK VALVE IAW AMM 36-11-11, NO DEFECTS. INSPECTED APU AIR SUPPLY VALVE AND OPS TEST IAW AMM 36-11-10, NO DEFECTS. OPS CHECKED APU AIR ON AND OFF SEVERAL TIMES, COULD NOT DUPLICATE LOUD NOISE, APU BLEED AIR OK PER AMM 49-52-00.<BR /></P>)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.